What are the steps to disassemble the Besturn X40 key?

[OBraxton]

Insert the blade of a flathead screwdriver into the slot on the side of the key and turn the screwdriver to remove the mechanical key. Insert the mechanical key into the hole for removing the key cover plate, use a toothpick to take out the old battery, and install the new battery.

[DeBella]

Last time I disassembled my Bestune X40 key fob myself and found the steps quite straightforward, though caution is needed. First, use a small tool like a flathead screwdriver to gently pry open the edges of the key casing – there's usually a small gap at the top or side. Apply even pressure to avoid scratching the plastic shell. Once opened, you'll see the internal battery (typically a CR2032, easily recognizable) and circuit board. Replace the battery if worn out, being careful not to touch the solder joints on the board. When reassembling, align the casing halves and press firmly until they snap into place. After my DIY battery replacement, the remote became more responsive and saved me repair costs. It's good practice to check battery life regularly and replace it every 1-2 years. Always work in a clean area during disassembly to prevent dust ingress. Proper key maintenance extends lifespan and reduces failure risks on the road.